My solutions

.gitignore

@@ -1,19 +1,3 @@
-# Cargo
-target/
 Cargo.lock
-!/Cargo.lock
-
-# State file
-.rustlings-state.txt
-
-# OS
-.DS_Store
-.direnv/
-
-# Editor
-*.swp
-.idea
-*.iml
-
-# Ignore file for editors like Helix
-.ignore
+target/
+.vscode/

.rustlings-state.txt

@@ -0,0 +1,98 @@
+DON'T EDIT THIS FILE!
+
+as_ref_mut
+
+intro1
+intro2
+variables1
+variables2
+variables3
+variables4
+variables5
+variables6
+functions1
+functions2
+functions3
+functions4
+functions5
+if1
+if2
+if3
+quiz1
+primitive_types1
+primitive_types2
+primitive_types3
+primitive_types4
+primitive_types5
+primitive_types6
+vecs1
+vecs2
+move_semantics1
+move_semantics2
+move_semantics3
+move_semantics4
+move_semantics5
+structs1
+structs2
+structs3
+enums1
+enums2
+enums3
+strings1
+strings2
+strings3
+strings4
+modules1
+modules2
+modules3
+hashmaps1
+hashmaps2
+hashmaps3
+quiz2
+options1
+options2
+options3
+errors1
+errors2
+errors3
+errors4
+errors5
+errors6
+generics1
+generics2
+traits1
+traits2
+traits3
+traits4
+traits5
+quiz3
+lifetimes1
+lifetimes2
+lifetimes3
+tests1
+tests2
+tests3
+iterators1
+iterators2
+iterators3
+iterators4
+iterators5
+box1
+rc1
+arc1
+cow1
+threads1
+threads2
+threads3
+macros1
+macros2
+macros3
+macros4
+clippy1
+clippy2
+clippy3
+using_as
+from_into
+from_str
+try_from_into
+as_ref_mut